geometry crossword

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Across
  1. 2. angles that are directly across from each other
  2. 5. less than 90 degrees
  3. 6. arc whose endpoints are on or in the exterior of a central angle
  4. 11. opposite outside(equal)
  5. 12. adjacent angles that make a straight line (beside each other)
  6. 14. same size/shape
  7. 15. line that has one end and extends infinitely in the other
  8. 16. two lines that intersect at 90 degrees
  9. 18. set equal to 180 degrees
  10. 19. more than 90 degrees
  11. 20. 90 degrees
Down
  1. 1. an angle whose vertex is the center of the circle
  2. 3. opposite inside(equal)
  3. 4. arc whose points are on or in the interior of a central angle
  4. 7. unit of measurements for angles
  5. 8. same spot(equal)
  6. 9. section with two endpoints
  7. 10. two rays with shared endpoints called vertex
  8. 13. arc whose endpoints lie on a diameter
  9. 17. the side across from the right angle